Identification, isolation and elimination of cancer stem cells

C - Chemistry – Metallurgy – 12 – N

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C12N 5/0797 (2010.01) C12N 5/078 (2010.01) C12Q 1/02 (2006.01) C12Q 1/04 (2006.01) C12Q 1/68 (2006.01) G01N 33/15 (2006.01) G01N 33/574 (2006.01)

Patent

CA 2546465

Isolated populations of leukemic stem cells are provided. The cells are useful for experimental evaluation, and as a source of lineage and cell specific products, and as targets for the discovery of factors or molecules that can affect them. Detection of leukemic stem cells is useful in predicting disease progression, relapse, and development of drug resistance. Proliferation of LSC may be inhibited through interfering with activation of the b~catenin pathway. Methods are provided for the clinical staging of pre-leukemia and leukemias by differential analysis of hematologic samples for the distribution of one or more hematopoietic stem or progenitor cell subsets.

L'invention concerne des populations isolées de cellules souches leucémiques. Ces cellules sont utiles pour une évaluation expérimentale et comme source de produits spécifiques de lignée et de cellule et comme cibles pour la recherche de facteurs ou de molécules pouvant les affecter. La détection de cellules souches leucémiques est utile dans la prédiction de l'évolution d'une maladie, d'une rechute et du développement d'une pharmacorésistance. La prolifération de cellules souches leucémiques peut être inhibée par interférence avec l'activation de la voie de la .beta.-caténine. L'invention concerne également des méthodes destinées à la stadification clinique d'une pré-leucémie et de leucémies par analyse différentielle d'échantillons hématologiques en vue de la distribution d'un ou plusieurs sous-ensembles de cellules souches ou progénitrices hématopoïétiques.

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